It was with the help of the local guide the mountain climber was rescued.A. howB. whoC. wh

问题补充：

It was with the help of the local guide the mountain climber was rescued.

A. how

B. who

C. when

D. that

答案：

A. how

B. who

C. when

(答案→)D. that

解析：考查强调句型。该句可还原为the mountain climber was rescued with the help of the local guide，故可知为强调句，强调状语，强调句型结构:it+be +被强调部分+that/who(指人)+其他，故选D。